What is your favorite free game given by XBL?

[sunkinship]

Sure, its not technically a free game, but what is your favorite game that you can acquire for free through a subscription of Xbox Live?

 

[BlackSolaris]

Halo and Dead Rising were some pretty good must-own games that they put out there. I really liked how that managed to boost the multiplayer options on the games they released, giving them one last push of fun before the next generation.

 

[Caillou]

i was pretty happy that they put Fable 3 on for everybody.